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Rock and Soil Model Question Paper

8th Standard EM

    Reg.No. :
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Social Science

Time : 01:00:00 Hrs
Total Marks : 40
    5 x 1 = 5
  1. The major component of soil is

    (a)

    Rocks

    (b)

    Gas

    (c)

    Water

    (d)

    Minerals

  2. This soil is not suitable for agriculture

    (a)

    Alluial Soil

    (b)

    Desert Soil

    (c)

    Black Soil

    (d)

    Laterite Soil

  3. To become a well matures soil, it takes ______ years.

    (a)

    200

    (b)

    2000

    (c)

    3000

    (d)

    400

  4. ________ part is composed of organic matter mixed with mineral matter.

    (a)

    Organic material

    (b)

    Sub soil

    (c)

    Top soil

    (d)

    Humus

  5. Oldest sedimentary rocks of the world has been identified in ________

    (a)

    Greenland

    (b)

    Newzeland

    (c)

    England

    (d)

    Ireland

  6. 5 x 3 = 15
  7. Describe about the composition of soil.

  8. State the types of soils.

  9. Uses of soils (any two).

  10. Define Petrology.

  11. What are the characteristics of sedmimentary Rocks?

  12. 4 x 5 = 20
  13. Explain the process of soil formation.

  14. Classify and explain the soil?

  15. Write the useful making of Rocks.

  16. Difference between M-Sand and River Sand.

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